TESTS 311 



transitional areas between them ; (29) are areas in which most of the 

 plants or animals found belong to single or relatively few animal or 

 plant groups ; (30) are not usually sharply marked. 



Achievement Test 



1. How many animal or plant societies have you found in your 

 locality ? 



2. How would you stock an aquarium and keep it balanced ? 



3. How can you illustrate the nitrogen, carbon, and oxygen cycles? 



4. What are all the factors of the environment which affect living 

 things in your own environment ? 



5. What is the meaning of symbiosis, and can you give exam- 

 ples? 



6. Have you any local parasites and how are they controlled ? 



7. What is the effect of water upon the life in your region? 



8. How has man controlled or changed life by use of water? 



9. What geographic region do you live in and what are the chief 

 characteristics of its flora and fauna ? 



Practical Problems 



1. Select some locality near you and try to work out the animal 

 and plant communities there. 



2. Make a map for your notebook, showing zonal distribution of 

 plants and animals for your locality. 



3. Take an area in your own yard one foot square and list all the 

 living things you can find there. 



Useful References 



Coulter, Barnes, and Cowles, Textbook of Botany, Vol. Three. 



(American Book Company.) 

 Downing, Our hiving World. (Longmans, Green & Co. 1924.) 

 Elton, Animal Ecology. (The Macmillan Co. 1927.) 

 Flattely and Walton, The Biology of the Sea Shore. (The Macmillan 



Co. 1922.) 

 Howes, Insect Behavior. (R. C. Badger.) 

 Jordon and Kellogg, Animal Life. (D. Appleton & Co.) 

 Loeb, Forced Movements, Tropisms and Animal Conduct. (J. B. 



Lippincott Co. 1918.) 

 Needham, General Biology. (Comstock Publishing Co.) 

 Pearse, Animal Ecology. (McGraw Hill Co. 1926.) 

 Schimper, Plant Geography. (Oxford University Press.) 

 Shull, Principles of Animal Biology. (McGraw Hill Co. 1924.) 



